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fix: share scans across batched vector queries

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Gatefixer
2026-08-05 21:36:34 +00:00
parent c7ea91f3ea
commit de54965ece
5 changed files with 116 additions and 35 deletions
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nodejs/lancedb/query.ts
+5 -5
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@@ -708,11 +708,11 @@ export class VectorQuery extends StandardQueryBase<NativeVectorQuery> {
* Add a query vector to the search
*
* This method can be called multiple times to add multiple query vectors
* to the search. If multiple query vectors are added, then they will be searched
* in parallel, and the results will be concatenated. A column called `query_index`
* will be added to indicate the index of the query vector that produced the result.
*
* Performance wise, this is equivalent to running multiple queries concurrently.
* to the search. A column called `query_index` will be added to indicate the index
* of the query vector that produced the result. Flat searches share one table scan
* across the query vectors, avoiding the scan and memory amplification of running
* multiple queries concurrently. Indexed searches may still perform per-vector
* index work.
*/
addQueryVector(vector: IntoVector): VectorQuery {
if (vector instanceof Promise) {